EBK AN INTRODUCTION TO MATHEMATICAL STA
6th Edition
ISBN: 9780134114248
Author: Marx
Publisher: YUZU
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Chapter 8.2, Problem 19Q
To determine
Whether The design is ‘Two- sampled design ‘or not
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For Questions 1 and 2, you will read an operational hypothesis. Identify the independent variable (IV), dependent variable (DV), and unit of analysis (UA). For each variable (IV and DV), indicate the appropriate level of measurement.
There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South.
IV:
DV:
UA:
Level of Measurement (IV):
Level of Measurement (DV):
Question 5For each of the following tobs values, determine the highest level of significance associated with the decision taken.
tobs df Decision
(i) 4.000 17 Reject Ha for a two-tailed test
(ii) 1.200 120 Reject Ha for a one-tailed test
(iii) -2.660 16 Reject Ha for both one-tailed and two-tailed test
(iv) -1.586 60 Reject Ha for a one-tailed test
for a population with μ = 60 and σ = 8, the X value corresponding to z = 1.50 would be........................................
Chapter 8 Solutions
EBK AN INTRODUCTION TO MATHEMATICAL STA
Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - Prob. 3QCh. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - Prob. 7QCh. 8.2 - Prob. 8QCh. 8.2 - Prob. 9QCh. 8.2 - Prob. 10Q
Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - For Questions 8.2.1-8.2.12 use the flowchart in...Ch. 8.2 - For Questions 8.2.13-8.2.32 identify the...Ch. 8.2 - For Questions 8.2.13-8.2.32 identify the...Ch. 8.2 - Prob. 15QCh. 8.2 - For Questions 8.2.13-8.2.32 identify the...Ch. 8.2 - Prob. 17QCh. 8.2 - For Questions 8.2.13-8.2.32 identify the...Ch. 8.2 - Prob. 19QCh. 8.2 - Prob. 20QCh. 8.2 - Prob. 21QCh. 8.2 - Prob. 22QCh. 8.2 - Prob. 23QCh. 8.2 - Prob. 24QCh. 8.2 - Prob. 25QCh. 8.2 - Prob. 26QCh. 8.2 - Prob. 27QCh. 8.2 - Prob. 28QCh. 8.2 - Prob. 29QCh. 8.2 - Prob. 30QCh. 8.2 - Prob. 31QCh. 8.2 - Prob. 32Q
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- For the given data, which of the following are the correct values of SS-between, SS-within, and SS-total? GROUP 1 GROUP 2 GROUP 3 12 14 20 13 18 19 15 17 19 ADDITIONAL INFORMATION THAT MIGHT HELP YOU--THESE NUMBERS GO WITH THE DATA ABOVE: ΣX2 2469 SS1 SS2 SS3 4.67 8.67 0.67 A) SS-between = 54, SS-within = 14, SS-total = 68 B) SS-between = 20, SS-within = 32, SS-total = 52 C) SS-between = 38, SS-within = 6, SS-total = 44 D) SS-between = 18, SS-within = 18, SS-total = 36arrow_forward1a. For the following data: X Y # siblings grown up with # own children 2 0 3 1 7 4 5 6 4 6 3 1 Draw the scatterplot (MUST SHOW WORK FOR THIS PROBLEM) Group of answer choices a. yes b. no 1b. Using the dataset given in problem 14, test the hypothesis that there is a significant positive relationship between the # of siblings an individual grows up with and the number of children they eventually have. Use α = .05. Which of the following accurately represents the null and alternative hypotheses? (MUST SHOW WORK FOR THIS PROBLEM) Group of answer choices a. H0: ρ ≤ 0, H1: ρ > 0 b. H0: ρ ≥ 0, H1: ρ…arrow_forwardFor a population with u=50 and o=10,what is the x value corresponding to z=0.4?arrow_forward
- For items 1 - 5, use the data below that gives the humerus bone length (in cm) and height (in inches) for a sample of female skeletons. [The data was provided by Dr. Ayers-Darling, former professor at MVCC.] humerus (cm) height (in.) 32.6 66 28.0 60 29.9 62 30.5 63 31.2 64 29.9 62 29.1 61 29.5 62 29.8 62 28.5 The least-squares regression line relating two variables x and y is given by . Compute the residual if the actual value of y is 8 when x is 2.____________________________ Let's visit the scuba diver data again. The least-squares regression equation for the data is dive time = 73.367 0.426(max depth). Predict the dive time, if the maximum depth is 60 feet. Express your answer to the nearest minute (whole number).________ Let's visit the scuba diver data again. The least-squares regression equation for the data is dive time = 73.367 0.426(max depth). Predict the dive time, if the diver remains on the surface of the water (maximum depth is 0 feet). Express…arrow_forwardFor a population with µ = 40 and σ = 8, what is the X value corresponding to z = 1.50?arrow_forwardA developmental psychologist would like to determine how much impulsivity changes for children from age 3 to age 4. A random sample of n = 15 3-year-old children and a second sample of n = 15 4-year-olds are obtained. Each child is rated by her or his primary caregiver on a questionnaire, with higher scores indicating higher levels of impulsivity. The average score for the older children was M = 41.1 with SS = 440 and the average for the younger children was M = 36.5 with SS = 410. Using these data answer the following. Which test is most appropriate for this situation? z-score test single-sample t-test independent samples t-test related-samples t-testarrow_forward
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